Line extender



FIG. 1 is a front-right-top perspective view of a line extender;

FIG. 2 is a front view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for a line extender, as shown and described. 